Dump-car.



A. LIPSCHUTZ.

DUMP UAR.

APPLICATION FILED MAY 23, 1908.

Patented May 25, 1909.

3 SHEETS-SHEET 1.

A. LIPSGHUTZ.

DUMP GAR.

APPLICATION FILED MAY 2a, 1908.

Patented May 25, 1909.

3 SHEETSSHEET 2.

fzve eiar: dri izw /gvaaiaaiz Wzirzmwea: WW 6"- f A. LIPSGHUTZ.

DUMP GAB.

APPLICATION FILED MAY 23. 1908.

Patented May .25, 1909.

3 SHEETS-SHEET 3.

nrnrnn snares rn rnntr onricn ARTHUR LIPSCHUTZ/OF CHICAGO, ILLINOIS,ASSIGNORBY MESNE ASSIGNMENTS, TO NATIONAL DUMP CAR. COMPANY, OF CHICAGO,ILLINOIS, A CORPORATION OF MAINE To all whom it may concern: 7

, Be it known that I, ARTHUR LIPsoHUTz, a citizen of the United States,and resident of Chicago, Cook county, Illinois, have invented new anduseful Improvements in Dump- Car's, of-which the following is a true,clear, and exact description, such as will enable others skilled i'n'the' art to which it appertains to make and use the same.

My invention relates to im rovements in dump cars and has special reerence to such ashave flat floors composed of drop doors adapted todischarge the load, when released and dropped. 7

' The; object of my invention is to provide an improved dump car whichmay be used either as an ordinary freight car for carrying packagedgoods, or as a dump car for transporting bulk materials, such as ore,coal, sand and gravel; v I

A further and special object of the invention is to provide a "dumpcarwhich shall have a siibstantially flat'or levelfioor eXtend-.

ing from end to end of the car and from side to side thereof and ineffect wholly composed of drop doors, adapted to discharge the wholeload; a special urpose of the invention beingto provide or the completeemptying of the car without shoveling or manually handling any part ofthe load.

Another object of the invention is to proi vide a car of minimum heightand in which the doors when dropped shall incline at such ter middleline of angles as to insure the free discharge of "he material from thecar.

, Another object is to provide a car which in a practical sense shallhave no flat surfaces between its drop doors, but which shaltnevertheless beconstructed in such manner that when the doors aredropped, 6. c, in incline-d positions, workmen in y freely safely walkfrom end to end car upon the center siii thereof,

cars which are adapted to discharge the whole load, as distinguished frowhich necessitate shoveling, ordina. doors that extendsubstantially fromthe the thereoi, hinged eo doors being either co-inci by so a space asto'leav on between the doors Such doors are necessarily of their weightis such to make them 7 Specification of Letters Patent. Applicationfiled May 23, 1908. Serial No. 43%,537.

Dinar-can.

Patented May 25, 1909.

to operate. Furthermore, such doors necessarily carry the weight of thewhole load and transmit excessive strains to the lifting and lockingdevices, by which their free edges are secured to the sides of the car.To overcome these difliculties I provide a car with two sets of doors ofdifferent sizes which togethermake up practically the entire floor ofthe can. These doors are hinged at substantially the same distances fromrespectively adjacent sides of the car and the ldarger doors practicallyoverlap the smaller oors. e

The hinges of the two sets 'oftdoors are parallel and are separated by aspace nearly equal to that between the hinge lines and the sidesof thecar. The'larger doors, obviously are not hinged at their inner ends butat intermediate points and the load resting upon the inner ends orportions of these doors partly balances that which rests on their outerends. The eflective length of the doors (between hinge and car side) isless than in other cars of the kind and hence the doors may be operatedand supported by devices of less weight and size than usual. llhis isparticularly true of the doors which are intermediately pivoted andpartly counterbalanced. The height of a dump car is practicallydetermined by the angle to which it is possible to drop the doors overthe trucks, and in my car, asthe doors are relativeiy narrow, therequisite pitch may be secured with the car floor at'a minimum altitude.in other words I am able to make my car much lower than other cars ofits class.

Other objects and the detailed construction of a car embodying myinvention in preferred form appear hereinafter and will be more readilyunderstood by reference to.

.nate a car which is typview showing both sets it shall be understoodthat car may be built and it is not my purpose and may also beadvantageously embodied in members, 3 and 3 constitute a center sillical of my invention. They do not exhaustively show the numerous formsin which the to confine or limit the invention to the specificstructures herein shown.

The appended claims, rather than the drawings, of this specification,indicate and set forth the character and scope of the"; invention.

The drawings illustrate a car having a SteeLunderframe and Wooden sidesand ends supported by side stakes. My. invention is admirably adapted tosuch car construction cars having underframes of the kind found inordinary box cars where the center sill members. are spaced apart andare in the same plane with the side sills.

In the drawings, 2&2, represent the body bolsters of the car and 33 theprincipal, longitudinal members of the wide center sill, A. The members,33, are connected at intervals by plates and diaphragms, 3. The

which in width is nearly equal to one-third of the width of the car. Thesill is not provided with top and bottom plates after the manner of abox girder, but is open at the top and bottom between the member, 33.The plates or members, 3, do not materially obstruct the opening betweenthe members, 3-3. The center s1ll members are framed into or joined tothe body bolsters as indicated in Fig. 4. 44 are the end sills of thecar, joined to the body bolsters by the center sill extensions thatconstitute the draft sills of the car. Cross bearers or crossbeams, 5-5,divide the space between the body bolsters. Thecross beams, 5, rest onthe center sill and are connected therewith and reinforced by verticaltransverse plates, 6-6, as shown in Figs. 3 and. 5. The side stakes,7-7, rise from the ends of the several transverse members, theconnections being reinforced by suitable plates, 8. 'Fl001 plates orangles, 9, are secured upon the ends of the bolsters and beams 2 and 5,and their vertical flanges are riveted to the side stakes, 7. The sides,10 and the ends, 11, of the car maybe constructed of planks secured asshown to the side stakes, 7.

The tops of the bolsters, 2, and the tops of the cross beams, 5, definethe floor surface of the car and these beamsare provided with flangesagainst which the drop doors close, when'the doors are raised (see Fig.5). An underframe of this construction contains three sets of flooropenings extending from end to end of the car. The set of openings atone side of the center beam are closed by drop doors, B, and ,theopposite set by drop doors, C, which latter also serve to close themiddle set of openings, between the longitudinal members of the centersill. The doors,

B B, are of uniform length and are substantially uniform in width.Theword of the car to the inner ends of the doors, B. I

In other words the doors, 0, are intermediately pivoted or substantiallybalanced on their hinges,'extending in both directions therefrom. Theouter portion, 0", of the door, C, is longer, however, than the innerportion, 0

in order that the weight of the load upon the outer portion of the doormay overbalance the load upon the inner portion or end of the door.

\Vhen both setsof doors are closed they constitute a flat, level andunbroken floor which extends from-side to side of-the car and from endto end thereof. The bolsters and the cross beams constitute so small aportion of the floor area as to be a negligible factor thereof and fromthis standpoint I describe my car as having a floor which is whollycomposed of drop doors. The doors, C, are preferably provided with edgeplates, 0 w iich overlap the doors, B, and close the joints between thesets of doors.

If desired the inner ends or portions, 0', of the doors, C, may haveedge plates to. lap upon the middle portions of the cross beams,

I), these inner ends being necessarily narrower than the outer portions,0 which latter close beneath the flanges of the cross beams. When thedoors are dropped a small portion of the load falls between the doors,C, and down through the space between the members, 3,3, of the centersill. In this way pieces of material are sometimes lodged upon the topflanges of the center sill. Though pieces of such size as to prevent theclosing of the doors rarely lodge on the center sill, in case they do,it is necessary -to sweep them off before closing the doors. Thisdifficulty may be wholly avoided by substituting the inverted V shapedflanges, 3", Fig. 5, for the straight flanges 3", shown in Fig. 4. Therelation between the trucks of the car and the doors at the ends of thecar appear from the dotted lines showing the wheels, 12, of the truck.It will be noted that although the car is low, the doors immediatelyover the truck drop to such angles as to insure the free and completedischarge of the load.

For operating the doors I may, employ either the winding shafts, 13-,-and chains, 14:, of Figs. 1, 2 and 3-, or the crank shafts, 15, shown inFig. 5, or the compound levers, 16, and rocking shafts, 17, of Fig. 4.\Vhatevcr kind of mechanismis employed it may be of are short and carrysmaller proportions of the load than in-other cars of the same class.

It will be obvious also that the doors, C,

transmit comparatively small, strains to the operating mechanisms,inasmuch as these doors are practically balanced when loaded. The largedoors, C, open most readily when their inner ends are relieved frompart, of

theload and I therefore prefer that the small doors shall be openedfirst. To insure this desired operation of the-doors I connect theoperating. shafts in such manner as to force the workmen to release thewinding shaft of the small doors before unlocking the one which bel'on's to the large doors. A simple mechanism for accomplishing this resultis shown in Fig. 2. As there shown the winch ing shafts, 13, are rovidedwith ratchet wheels, 18-18, having pawls, 19 and 19 respectively. Alocking block, 20, is adapted to hold the pawl, 19, in engagement withthe ratchet, 18, and a block, 21, serves a like function in connection'with the pawl, 19. The block, 21, is connected with the pawl, 19, by arod, 22. The ratchet, 18, represents the set of small doors, B, and onliftingthe block, 20, the pawl, 19, may be disengaged from the ratchetto free the doors, B, whereupon they at once fall, The disengagement ofthe pawl, 19, from the ratchet. 18, serves to disengage the block, 21,from the pawl, 19, which may then be operated to free the ratchet, 18,and the large drop doors. As indicated in Fig. 3 the opening of thedoors, B, serves to discharge practically half of the load, The majorpart of the remainder of the load rests upon the outer portions of thelarge doors, C, and is quickly discharged when the latter are dropped.The opening of the large doors uncovers the center sill and at suchtimes the workmen may walk along the same while holding to the thenelevated inner ends of the doors, B.

As before explained the car herein shown ismerely typical of myinvention. The invention 1s not limited thereto. I

Having thus described my invention, 1- claim as new and desire to secureby Letters Patent:

1. A dump car having its floor composed of hinged drop doors arranged intwo sets orrows, the doors of one set being shorter than those of theother set and the sets of doors being normally in substantial endwiseabutment, substantially as described.

2. A dump car having its-floor Wholly composed of hinged drop doorsarranged iii two sets or rows, the doors of one set beingy shorter thanthose of the other set and thd sets of doors being normally insubstantial endwise abutment. substantially as described.

A dump car having two normally abut ting sets of hinged drop doors, thedoors of one set being longer than those of the other set, incombination with means for operating the doors of both sets,substantially as described.

4. A dump car having two normally abutting sets of hinged drop doors thedoors of one set being longer than those of the otherset, in combinationwith means for operating the short and the long doors successively,substantially as described.

5. -A dum car having two normally abutting sets of inged drop doors, thedoors of one set being longer than those of the other set, incombination with means for operating and securing said doors and meanscompelling the opening or dropping ofthe'short and long doors,successively, substantially as described.

6. A dump car having two normally abutting sets of hinged dropdoors thedoors of one set being longer than those of the other set, incombination with means. for raising and securing said doors and meanspreventing the release of the longer doors until the short doors havebeen dropped, substantially as described.

7. A dump car ha ving its floor wholly composed of short and long drodoors normally in endwise abutment and inged upon parallel lines toclose against respective sides of the car, substantially as described.

8. A dump car having its floor wholly composed of short and long dropdoors normally in endwise abutment and hinged ugpon parallel lines tocloseagainst respective sldes of the car, said long doors bein pivotedsubstantially midway between t eir ends and hence pa rtlybalanced,substantially as described.

' 9. A dump car having its floor composed of two sets of dro doors ofdiiferent lengths, the shorter doors eing hinged at their inner ends toclose againstthe adjacent car side and the longer doors being'intermediately' hinged to close against the other side of the car andtheinner ends of the short doors, substantially as descnibed.

'10. A dump car having itsfloor composed of two sets of drop doors ofdifferent lengths the shorter doors being hinged at their inner ends toclose against the adjacent car side and the longerdoors beingintermediately hinged to close against the other side of the car and theinner ends of the short doors, and door operating'mechanisms,substantially as described. 1 Y 11. A dump car, thefloor of whichcontains three' parallel rows of openings, in combination with a set' ofdrop doors normally closing one row of said openings and a second set ofdoors normally closing both of the other rows of openings, substantiallyas described. 12. A dump car, the floor of which contains three parallelrows of openings, in combination with a set of drop doors normallyclosing one row of said openin s, a second set of doors normally closingth of the other rows of-openings and mechanisms for operating andsecuring said-sets ofv bination with 'a set of doors hinged at one sideof said sill and normally closing one of said rows of openings andanother set of doors hinged at the other side of said sill, normallyclosing the other row of openin s and also extending across said sill,'into su stantial abutment with the first set of doors, substantially asdescribed. 15. A dump car having a wide. center sill and parallel rowsof door openings, in combination with a set of doors hin ed-at one sideof said'sill and normally closing one of said rows of openings andanother set of doors hinged, at-the' other side of said sill, normallyclosing the other row of openings and also extending across said sillinto substantial abutment with the first set of doors and mechanism foroperatin and securing each set of doors, substantially as described.

16. A dump car having a Wide center sill and parallel rows of dooropenings, in com bination with a set of doors hin ed at one side of saidsill and normally 0 osing one of said rows of openings and another setof doors hinged at the otherside of said sill, normally closing theother row of openings and also extendlng across said sill intosubstantial abutment with the first set of doors," and mechanism. foroperating and securing each set of doorsand interlocked operating andsecurin mechanisms for the two sets of doors adapted to insure thesuccessive dropping thereof, substantially as described.

17 A dump car having two widely sepa: rated rows of drop door openingsof substantially equal width and extending from' end to end of the carin combination with short drop doors normally closing one row 5501 saidopenings and long doors normally closing the other row of openings andcons stituting the car floor between the door openings, substantially asdescribed.

18. A dump car comprising an underframe having an open or divided centersill,

in combination with car sides, a set of shortdrop doors .closing thespace-between one side and the center sill, another set of dro doorsclosingthe opening in the center si 1 and the space between the sill andthe other car side, and suitable door operating mechanisms,substantially as described.

19. A dump car comprising an underframe containing three rows ofopenings extending from end to end of the car, in combination'with sidesdefining the outer edges of the outer rows of said openings, saidunderframe having members defining the middle row of openings and theinner edges of the outer rows of openings, short doors normally closingrespective outer openings, longer doors hinged in the other row of.outer openings and normally closing the same and the middle rowofopenings and said longer doors normally lapping upon the shorterdoors, substantially as described.

20. A dump car comprising an underframe containing three rows ofopenings extending from end to end of the car, in combination with sidesdefining the outer edges of the outer rows of said openings, saidunderframe having members defining themiiddle row of openings and theinne edges of the outer rows of openings, short oors normally closingrespective outer openings. 9 longer doors hinged in the other row ofouter openings and normally closiitg the same; and the-middle row ofopenings, said longer doors normally lapping upon the shorter doors andmeans for supporting said .doors and for successively dropping the shortand the long doors, substantially as described.

21. A dump car having three sets of drop door floor openings, incombination with a set of doors hinged at their ends and adapted toclose one of said sets of openings and another set of intermediatelyhinged doors adapted to close both of the other sets of openings,substantiallyas described.

22. A dump car floor wholly composed of a set of short doors and a setof long doors hinged upon respective, parallel" lines, said 'long doorshaving their ends in substantial abutment with the hinged ends of theshort doors, substantially as described.

23. A dump car floor containing a set of short doors and a set of longdoors hinged upon respective, parallel lines,- said long doors havingtheir ends in substantial abut- 1 ment with the hinged ends of the shortdoors, substantially as described.

24. A dump car havin its floor wholly composed of drop doors 0difi'ering lengths, hinged uponv parallel'lines adjacent to the middleline of the car and extending to re-- spective sides of the car, thelonger doors abutting the ends of the shorter doors, sub stantially asdescribed.

25. A dump car comprising an underthe doors of one set extending fromthe hinge line thereof to the adjacent side of the car and the doors ofthe other set extending from the same hinge line to the opposite side ofthe car, substantially as described.

26. A dump carhaving its floor composed of two sets of drop doorsseparated upon a line parallel with and at one side of the middle lineof the car and hinged upon parallel lines on opposite sides of saidmiddle line, substantially as described.

27. A dump car comprising bolsters, in

' combination with a center sillcomposed of members spacedapart, crossbeams upon said Slll, car sides at the ends of sa1d bolsters and crossbeams, drop doors hinged at one of said members and extending therefromto the car side, other lgnger drop doors hinged at the other members andextending between the other car side and the first set of doors andmeans for operating said doors, substantially as described.

28. A dump car comprisingbolsters, in combination with a center sillcomposed of members spaced apart and having inclined tops, cross beamsupon said sill, car sides at the ends of said bolsters and cross beams,drop doors hinged at one of said members and extendin therefrom to thecar side, other longer rop doors hingedat the other member andextendingbetween the other car side and the first set of doors and meansfor operating said doors, substantially as described. a 29. Thecombination in a dump car of a Wide center sill and a floor composed ofhinged drop doors which are "normally in substantial endwise abutment,means for operating said doors and said doors when dropped uncoveringsaid sill, to serve as a walk or run way, substantially as described.

30. The combination in a dump car of an underframe having a wide centersill and a plurality of flanged bolsters and cross beams, drop doorshinged at the center sill to close against the flanges of said bolstersand beams, side or edge plates, the doors on one side of the center sillbeing long enough to normally cover said sill, substantially asdescribed.

31. A dump car having two sets of drop doors which form its floor, oneof said sets being adapted to discharge less than half the load of thecar and the other set being adapted to discharge more than half of saidload, substantially as described.

In testimony whereof, I have hereunto set my hand, this 27th day ofMarch, 1908, in the presence of two subscribing witnesses.

, ARTHUR LIPSOHUTZ.

\Vitnesses CHARLES GILBERT HAWLEY, M. SIMON.

